Pages missing canonical link tag

A canonical tag is a line of HTML code that tells search engines which version of a page is the "official" one — preventing duplicate-content confusion when your page is accessible via multiple URLs (with or without www, trailing slashes, query parameters, etc.). When search engines see the same content at multiple URLs without a canonical hint, they split the ranking power across all versions instead of concentrating it on one. This can significantly reduce your position in search results. Add a <link rel="canonical" href="[page URL]"> tag to every page. It must appear in the server-rendered HTML, not just injected by JavaScript. Your developer or CMS usually has a one-click setting for this.